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-rw-r--r--drivers/net/ethernet/stmicro/stmmac/common.h2
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_est.c6
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c22
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c87
4 files changed, 113 insertions, 4 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 721c1f8e892f..70bef7811c91 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -202,6 +202,8 @@ struct stmmac_extra_stats {
unsigned long mtl_est_hlbf;
unsigned long mtl_est_btre;
unsigned long mtl_est_btrlm;
+ unsigned long max_sdu_txq_drop[MTL_MAX_TX_QUEUES];
+ unsigned long mtl_est_txq_hlbf[MTL_MAX_TX_QUEUES];
/* per queue statistics */
struct stmmac_txq_stats txq_stats[MTL_MAX_TX_QUEUES];
struct stmmac_rxq_stats rxq_stats[MTL_MAX_RX_QUEUES];
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_est.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_est.c
index 4da6ccc17c20..c9693f77e1f6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_est.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_est.c
@@ -81,6 +81,7 @@ static void est_irq_status(struct stmmac_priv *priv, struct net_device *dev,
u32 status, value, feqn, hbfq, hbfs, btrl, btrl_max;
void __iomem *est_addr = priv->estaddr;
u32 txqcnt_mask = BIT(txqcnt) - 1;
+ int i;
status = readl(est_addr + EST_STATUS);
@@ -125,6 +126,11 @@ static void est_irq_status(struct stmmac_priv *priv, struct net_device *dev,
x->mtl_est_hlbf++;
+ for (i = 0; i < txqcnt; i++) {
+ if (feqn & BIT(i))
+ x->mtl_est_txq_hlbf[i]++;
+ }
+
/* Clear Interrupt */
writel(feqn, est_addr + EST_FRM_SZ_ERR);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index b334eb16da23..33509237fe60 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2507,6 +2507,13 @@ static bool stmmac_xdp_xmit_zc(struct stmmac_priv *priv, u32 queue, u32 budget)
if (!xsk_tx_peek_desc(pool, &xdp_desc))
break;
+ if (priv->plat->est && priv->plat->est->enable &&
+ priv->plat->est->max_sdu[queue] &&
+ xdp_desc.len > priv->plat->est->max_sdu[queue]) {
+ priv->xstats.max_sdu_txq_drop[queue]++;
+ continue;
+ }
+
if (likely(priv->extend_desc))
tx_desc = (struct dma_desc *)(tx_q->dma_etx + entry);
else if (tx_q->tbs & STMMAC_TBS_AVAIL)
@@ -4498,6 +4505,13 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
return stmmac_tso_xmit(skb, dev);
}
+ if (priv->plat->est && priv->plat->est->enable &&
+ priv->plat->est->max_sdu[queue] &&
+ skb->len > priv->plat->est->max_sdu[queue]){
+ priv->xstats.max_sdu_txq_drop[queue]++;
+ goto max_sdu_err;
+ }
+
if (unlikely(stmmac_tx_avail(priv, queue) < nfrags + 1)) {
if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev, queue))) {
netif_tx_stop_queue(netdev_get_tx_queue(priv->dev,
@@ -4715,6 +4729,7 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
dma_map_err:
netdev_err(priv->dev, "Tx DMA map failed\n");
+max_sdu_err:
dev_kfree_skb(skb);
priv->xstats.tx_dropped++;
return NETDEV_TX_OK;
@@ -4871,6 +4886,13 @@ static int stmmac_xdp_xmit_xdpf(struct stmmac_priv *priv, int queue,
if (stmmac_tx_avail(priv, queue) < STMMAC_TX_THRESH(priv))
return STMMAC_XDP_CONSUMED;
+ if (priv->plat->est && priv->plat->est->enable &&
+ priv->plat->est->max_sdu[queue] &&
+ xdpf->len > priv->plat->est->max_sdu[queue]) {
+ priv->xstats.max_sdu_txq_drop[queue]++;
+ return STMMAC_XDP_CONSUMED;
+ }
+
if (likely(priv->extend_desc))
tx_desc = (struct dma_desc *)(tx_q->dma_etx + entry);
else if (tx_q->tbs & STMMAC_TBS_AVAIL)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
index 26fa33e5ec34..cce00719937d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
@@ -915,8 +915,30 @@ struct timespec64 stmmac_calc_tas_basetime(ktime_t old_base_time,
return time;
}
-static int tc_setup_taprio(struct stmmac_priv *priv,
- struct tc_taprio_qopt_offload *qopt)
+static void tc_taprio_map_maxsdu_txq(struct stmmac_priv *priv,
+ struct tc_taprio_qopt_offload *qopt)
+{
+ struct plat_stmmacenet_data *plat = priv->plat;
+ u32 num_tc = qopt->mqprio.qopt.num_tc;
+ u32 offset, count, i, j;
+
+ /* QueueMaxSDU received from the driver corresponds to the Linux traffic
+ * class. Map queueMaxSDU per Linux traffic class to DWMAC Tx queues.
+ */
+ for (i = 0; i < num_tc; i++) {
+ if (!qopt->max_sdu[i])
+ continue;
+
+ offset = qopt->mqprio.qopt.offset[i];
+ count = qopt->mqprio.qopt.count[i];
+
+ for (j = offset; j < offset + count; j++)
+ plat->est->max_sdu[j] = qopt->max_sdu[i] + ETH_HLEN - ETH_TLEN;
+ }
+}
+
+static int tc_taprio_configure(struct stmmac_priv *priv,
+ struct tc_taprio_qopt_offload *qopt)
{
u32 size, wid = priv->dma_cap.estwid, dep = priv->dma_cap.estdep;
struct plat_stmmacenet_data *plat = priv->plat;
@@ -968,8 +990,6 @@ static int tc_setup_taprio(struct stmmac_priv *priv,
if (qopt->cmd == TAPRIO_CMD_DESTROY)
goto disable;
- else if (qopt->cmd != TAPRIO_CMD_REPLACE)
- return -EOPNOTSUPP;
if (qopt->num_entries >= dep)
return -EINVAL;
@@ -1045,6 +1065,8 @@ static int tc_setup_taprio(struct stmmac_priv *priv,
priv->plat->est->ter = qopt->cycle_time_extension;
+ tc_taprio_map_maxsdu_txq(priv, qopt);
+
if (fpe && !priv->dma_cap.fpesel) {
mutex_unlock(&priv->plat->est->lock);
return -EOPNOTSUPP;
@@ -1078,6 +1100,11 @@ disable:
priv->plat->est->enable = false;
stmmac_est_configure(priv, priv, priv->plat->est,
priv->plat->clk_ptp_rate);
+ /* Reset taprio status */
+ for (i = 0; i < priv->plat->tx_queues_to_use; i++) {
+ priv->xstats.max_sdu_txq_drop[i] = 0;
+ priv->xstats.mtl_est_txq_hlbf[i] = 0;
+ }
mutex_unlock(&priv->plat->est->lock);
}
@@ -1095,6 +1122,57 @@ disable:
return ret;
}
+static void tc_taprio_stats(struct stmmac_priv *priv,
+ struct tc_taprio_qopt_offload *qopt)
+{
+ u64 window_drops = 0;
+ int i = 0;
+
+ for (i = 0; i < priv->plat->tx_queues_to_use; i++)
+ window_drops += priv->xstats.max_sdu_txq_drop[i] +
+ priv->xstats.mtl_est_txq_hlbf[i];
+ qopt->stats.window_drops = window_drops;
+
+ /* Transmission overrun doesn't happen for stmmac, hence always 0 */
+ qopt->stats.tx_overruns = 0;
+}
+
+static void tc_taprio_queue_stats(struct stmmac_priv *priv,
+ struct tc_taprio_qopt_offload *qopt)
+{
+ struct tc_taprio_qopt_queue_stats *q_stats = &qopt->queue_stats;
+ int queue = qopt->queue_stats.queue;
+
+ q_stats->stats.window_drops = priv->xstats.max_sdu_txq_drop[queue] +
+ priv->xstats.mtl_est_txq_hlbf[queue];
+
+ /* Transmission overrun doesn't happen for stmmac, hence always 0 */
+ q_stats->stats.tx_overruns = 0;
+}
+
+static int tc_setup_taprio(struct stmmac_priv *priv,
+ struct tc_taprio_qopt_offload *qopt)
+{
+ int err = 0;
+
+ switch (qopt->cmd) {
+ case TAPRIO_CMD_REPLACE:
+ case TAPRIO_CMD_DESTROY:
+ err = tc_taprio_configure(priv, qopt);
+ break;
+ case TAPRIO_CMD_STATS:
+ tc_taprio_stats(priv, qopt);
+ break;
+ case TAPRIO_CMD_QUEUE_STATS:
+ tc_taprio_queue_stats(priv, qopt);
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ }
+
+ return err;
+}
+
static int tc_setup_etf(struct stmmac_priv *priv,
struct tc_etf_qopt_offload *qopt)
{
@@ -1126,6 +1204,7 @@ static int tc_query_caps(struct stmmac_priv *priv,
return -EOPNOTSUPP;
caps->gate_mask_per_txq = true;
+ caps->supports_queue_max_sdu = true;
return 0;
}
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-06 02:07:21 +0300